Not the elegant prince of our debauched and vicious art, not the jeweled idol of our society churches--but the Jesus of the awful reality, the man of sorrow and pain, the outcast, despised of the world, who had nowhere to lay his head--.
AngularJS uses $provide to register new providers. The providers basically create new instances, but only once for each provider. The $provide has six methods to create custom providers and I will explain each one of them with the help of sample code.
PHP is server-side. Basically, Angular handles all the viewing etc inside the browser and on the same page, sending requests to the backend API (e.g created via PHP) to handle database requests and so forth. Angular and PHP serves two completely different functions and can be used together, not in place of one another.